Pile-driving mechanism.



I; ERICKSON.

PILE DRIVING MECHANISM. APPLICATION FILED sEPT.2I. I917.

Patented Nov. 12, 1918.

JAMES ERICKSON, OF PHILADELPHIA, PENNSYLVANIA.

PILE-DRIVIN'G MECHANISM.

Specification, of Letters Patent.

Patented Nov. 12, 1918.

Application filed September 21, 1917. Serial No. 192,49

To all whom it may concern:

Be it known that I, JA ns ERIGKSON, a citizen of the United States, and a resident of the city of Philadelphia, county of Philadelphia, State 'of Pennsylvania, have invented certain new and useful Improvements in Pile-Driving Mechanism, of which-the following is a specification.

My invention relates broadly to pile driving mechanism, but more specifically to means for connecting the ram or monkey guide frame to its support in such manner that it may have universal adjustment.

The principal object of my invention is to provide a connection such that the guides for the ram may be adjusted and positioned forwardly, rearwardly or laterally in opposite directions, the said guides having connection with a rotatable member.

A further object of my invention is to provide means whereby the pile to be driven may be readily lifted and placed in the position desired.

Other objects and advantages of my invention will be referred to and pointed out in the detail description thereof which f o1- lows or will be apparent from such descr1ption. 1

In order that my invention may be more easily and readily understood and 1ts practical advantages fully appreciated and comprehended reference may be had to the accompanying drawing in which I have illustrated one form of a convenient embodiment of my invention. It will be understood, however, that my invention is susceptible of embodiment in other forms of construction than that shown.

, In the drawing Figure 1 is a side elevation of a portion of a pile driving structure including my invention;

Fig. 2 is a side elevation of a portlon of the said structure including a rotatable member to which the ram guide frame is connected;

Fig. 3 is a front elevation of the structure shown in Fig. 2; and

Fig. 4is a transverse 88013101131 view taken on the line 4-4 of Fig. 2.

Referring to the drawing, 1 designates the upper end portion of a boom and 2des1gnates cross members, one only of which is shown, pivotally secured to the upper. end of the boom 1 by means of a bolt 3 extending therethrough. In the construction as illustrated these members 2 are of channel form, but obviously they may be of any other preferred form.

4 designates portions of ropes passing over pulleys at 5 having connection with the outer lower end of links 6 (one only of which is shown) pivotally connected at their upper ends to the outer ends of the bolt 3 previously referred to. The ropes 4 may be adjusted in known manner to raise and lower the boom 1.

The outer lower end portions of the links 6 are connected by means of links 7 (one only of which is shown) to the outer ends of the channel members 2. The connection of the outer ends of the channel bars or members 2 to the links 6, as described, operates to hold the channel members 2 in substantially horizontal position as shown in Fig. 1 during the operation of the pile device. A box is secured and supported upon and between the forward ends of the channel members 2. This box comprises two side channel members 10, having their flanges turned inwardly as shown indotted lines in Fig. 3 of the drawing.

11 and 12 designate top and bottom plates which are secured to the opposing flanged edges of the channel members 10. 13 and 14 designate end plates for closing the opposite ends of the box, said end plates being secured in position by means of angle-irons 15 situated at the four corners of the box, as shown, and having'their respective sides secured to the webs of the channel members 10 and the end plates 13 and 14.

The box is pivotally connected with and supported upon forward ends of the channel members 2 by means of bolts 18, which bolts extend through the sides of the members 10 of the box and through the webs of the channel members 2, as shown in Fig. 1. They are held in place by means of nuts 19 having screw threaded connection with the outer ends thereof.

' 20 designates a relatively short tubular member which extends through openings 21 in the top and bottom plates 11 and 12 of the box structure. The upper end of the said tubular member 20 is provided with a collar 22 which is' firmly and fixedly secured thereto by means of rivets 23. The lower edge of the collar 22 rests upon the upper side of the top plate 11 of the box structure. At its lower end the tubular member is provided with ears or projections having openings therethrough constituting bearings for the support of the opposite ends of a short shaft 26 upon which a guide roller 27 is secured. These ears or projections are formed by slitting the lower end portion of the tubular member longitudinally and also transversely and bending portions thereof outwardly, thereby forming the said ears or projections. In order to prevent spreading of these ears or projections I have provided the tie-bolts 28, also the tie-bolt 29 situated in rear of the said ears or projections. Secured to a portion of the tubular member 20 below the said box structure. through the top and bottom plates of which the upper portion of the tube extends, are opposing plate-like parts, the central portions 30 of which are curved to fit the cylindrical surface of the tube 20 while the opposite projecting ends 31 thereof are plain and in parallel relation to each other. These plates are permanently secured to the tubular member 20 by means of rivets 32. Blocks 33 are situated between and are secured to the end portions 31 of the'platelike members by means of rivet bolts 34. These blocks are provided with cylindrical projections 35 which constitute trunnions to which the upper ends of the side bars 36 of the frame for supporting the ram 37 are pivoted. Only one of these bars is shown, but it will be understood that a bar identical with that shown in Fig. 1 is present upon the opposite side of the structure. These bars are provided with guides for guiding the ram 37 in its reciprocatory movements between the said bars in the operation of driving a pile. 4O designates a pivot bolt ex tending through parallel oppositely disposed plates 41, the lower edges of which rest upon the upper side of the top plate 11 of the box structure heretofore referred to. These plates are secured to the upwardly extending flanges 42 of angle-irons, the horizontal flanges 43 of which are secured to the top plate 11. Mounted upon the pivot bolt 40 are sheaves or pulleys 45 which rotate upon the said pivot bolt 40. 46 designates an inverted yoke-shaped member, the opposite sides of which fit closely against the outer sides of the upright plates 41, and are secured thereto by rivets. It should be noted that the pivot bolt 40 also extends through the sides of the yoke-shaped member 46. The cross connecting portion 47 of the yokeshaped member 46 is situated adjacent the edges of the sheaves or pulleys 45 so as to retain the ropes 50 and 51 therein, the first, 50, having connection with the ram 37 and the second, 51, having connection with the upper end portion of a pile 52. These ropes extend rearwardly over pulleys at 53 which are supported intermediate the upper ends of the side members (constituting the boom 1 of the structure) upon the bolt 3. The said ropes extend to power driven drums or otherdevices by means of which they may be wound up or unwound so as to lift the ram or the pile and lower the same as may be desired. I

It will be observed that central lower portions of the upright plates 41 and that central portions of the angle-irons secured thereto and to the top plate 11 are cut away, as indicated at 54 so as to provide spaces for opposite portions of the upper end of the tubular member 20 and the collar 22 cured thereto.

The upper ends of the side members 36 of the ram guiding frame are provided with projecting plates 55 having holes in their upper ends through which the trunnions 35 extend. Cotter pins 56 are provided for preventing accidental disengagement of the said plates 55 from the trunnion supports 35.

It will be seen that by reason of the fact that the tubular member 20 is rotatable in its support and that by reason of the further fact that the ram supporting and guiding frame is pivotally supported upon the projections 35 the said frame may be adjusted to any position desired. Such ability of adj ustment is very important because it adapts the structure for use in the driving of batter piles in whatever direction they may be inclined. I Vhe'n the ram guiding frame is in vertical position, as shown in Fig. 1 of the drawing, the rope 50 is out of contact with the guide roller 27 while the rope 51 contacts lightly therewith. When, however, the ram guiding frame is moved into inclined positions the rope 50 contacts with the said guide roller and is guided thereby.

I claim 1. In pile driving mechanism, the combi nation of a ram guiding frame, a ram op erating in said frame, a box-like structure, means for supporting said structure, a tubular member rotatably supported by the said box-like structure and means for pivotally connecting the upper end of said ram guiding frame to said tubular member, and flexible means extending through said tubular member for operating said ram.

2. In pile driving mechanism, the combi nation of a ram guiding frame, a rotatable member, means for pivotally connecting the upper end of said ram guiding frame to said rotatable member, pivotally supported means frame to said rotatable member, means for supporting said rotatable member, one or more sheaves, means for supporting the said sheaves above the upper end of said tubular member, substantially as described.

4. In pile driving mechanism, the combination of aram guiding frame, a tubular rtatable member, means for connecting the upper end of said frame to said member, a box-like structure having openings through the top and bottom plates thereof through which the said tubular member extends and in which openings the said tubular member may be rotated, means for supporting the said box-like structure, brackets secured upon the top side of said box-like structure, said brackets being situated upon opposite sides of the axis of said tubular member and being arranged in substantial parallel relation to each other, and one or more sheaves secured upon the said brackets, the forward edge or edges of said sheave or sheaves being situated in alinement with the central portion of the said tubular member whereby a flexible rope or ropes which pass over the said sheave or sheaves may be readily extended through the said tubular member, substantially as and for the purpose described.

5. In pile driving mechanism, the combination of a ram guiding frame, a tubular rotatable member, means for pivotally connecting the said frame to the said rotatable member, the said rotatable member being provided with projections below the said means, a guide roller supported by said projections, pivotally supported means for sup porting the said rotatable member and rope guiding sheaves supported above the upper end of said tubular member, substantially as and for the purpose described.

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this day of September, A. D. 1917.

JAMES ERICKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

